Questions tagged [microchip]

Microchip Technology is an IC manufacturer, best known for its extensive range of PIC microcontrollers, but also memory and analog function ICs. The term "microchip" is a legacy term for integrated circuits, not just ones designed by Microchip Technologies. The company came into existence and took the name after the term became common parlance.

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ATmega324PB, reading registers through SPI, the meaning of sending 0xAA

I have an electronics board that uses an ATmega324PB microcontroller that uses SPI communications to communicate with another device on the board. In a coding function that reads a register through ...
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ATA6570 does not wake up properly

I want to use the wake-up frame function of ATA6570 (only use ID to wake up), after entering sleep mode, sending the correct wake-up frame directly can wake up normally, but in sleep mode, the wake-up ...
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HC-SR04 with pic18f24k22 doesn't work

I'm trying to find the problem with my code, because It seems like I can't get the echo back from the sensor or it's not registered. Any help would be appreciated, thank you The code : ...
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What is the Test ID number of the USB7216 USB Hub chip

I am using the Microchip USB7216 USB 3.2 Hub chip in my design. I would like to know the TID number of this part. I have looked in the datasheet, on the manufacturer's website, and the internet in ...
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How do I exit (Microchip Pic18fxxxx rs232 BTFSS PIR1,RCIF) Loop when no data is present (Assembly Mplab Mpasm)

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Microchip FPGA Internal Short Circuit

We are using the FPGA ProASIC3E A3PE1500-PQ208. The FPGA got internally short circuited during runtime. The FPGA IO Supply Voltage and FPGA ground are permanently short circuited and it is not ...
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What is the difference between MCP73833-BZI and MCP73833-FCI

These are two variants of the same battery management ICs, I think they have different parameters, but I'm not sure how to interpret them. From the datasheet these are the specs difference: I have a ...
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How to get program file from PIC?

I want to get the program file in the pic 18F46K22 from an electronic PCB. There is no code protection or password on the PIC18F46K22. It is a simple card. Is it possible to connect to the card with ...
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How do I enable the divided clock output on an AT89LP51RC2?

When using External Clock Source A on an AT89LP51RC2, the datasheet says: XTAL2A may be left unconnected, used as general purpose I/O P4.7, or configured to output a divided version of the system ...
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ATmega32U4 without USB: how to handle usuned pins

On the ATmega32U4 MCU there are several pins related to USB: VBUS D+ D- UCAP UGND UVCC In the datasheet and in almost all reference schematics I find on the Internet, it's explained how to connect ...
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Microchip MLA file does not compile

I tried to compile an MLA file without success. The IDE keep telling me that "No such file or directory." Any idea how I can solve this problem? How can I change the directory of these ...
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How do I change and verify the clock frequency of Atmega4809 microcontroller? CLKOUT not working?

In the below code I am trying to get the clock frequency to show up on the CLKOUT pin which should be pinA7. But for some reason I don't get anything when measuring pinA7 on an oscillicope. I do see ...
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Using USB5742 USB 3.2 Gen 1 HFC IC with pre-configured firmware

Due to Chip Shortage problem, I have been looking for USB 2.0 Hub Controller for long time now. I need only two USB 2.0 Downstream (PHY) ports for my design. I contacted MicroChip and they have the ...
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Identifying a 20 pin laptop chip that gets very hot within seconds

I’ve been searching online to try and find out what this laptop chip does or any indication as to what would be a suitable replacement. Currently, when power is put to the board, this gets to 90° ...
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Parameters of One_Wire protocol function

How can we explaine the following line of statement in mikroC PRO for PIC Ow_Reset(&PORTE, 2); // Onewire reset signal I understand that ...
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Setting up DDR3 memory in Libero SoC

I am trying to set up DDR3 memory on Hello FPGA kit board from Microchip (with M2S010-1VF256 SoC). The memory placed on the board is Micron MT41K1G8RKB-107:N (the datasheet is for example here). The ...
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PIC32 USB STARTER KIT III not appearing in Board Support Packages (BSP)

I have been trying to use Microchip MPLAB Harmony 3 to develop a USB application using the Microchip PIC32 USB starter KIT III. When I create a new project I enter the following - The PIC32 USB ...
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12 bit vs 10 bit ADC PIC18f [closed]

Convert 12 bits adc to 10 bit adc. We know that the resolution of the step size for a 12 bit is 1.22, different than the step size of 4.88 of the 10 bit. We need to take into account the extra 2 bits. ...
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Replacing USB251xB/xBI USB 2.0 HUB Controller

Due to Chip Shortage problem, I need to replace Microchip USB251xB/xBi USB 2.0 Hi-Speed Hub Controller with USB3503T-I/ML I'm using only two USB 2.0 ports. the chip will be used in an Industrial ...
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Pin-based security chips for Arduino?

These cryptocurrency wallets like Coldcard can be unlocked by a simple PIN, and are fairly safe. I believe that they use a security chip that stores information and only delivers with the right PIN. ...
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Is ATSAM4S4A supported by ATMEL ICE debugger?

I have a huge confusion on whether or not this MCU(ATSAM4s4AA-AU) is supported by the ATMEL ICE debugger. First, I checked the official website for ATSAM4S4A and when I got to the "Emulators and ...
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printf for Pic32MX170F256B

I'm using harmony for my project and I'm not able to print via the printf function. I'm using UART1 and i have been reading that the standard print channel is UART2. Can someone help me how to ...
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Why aren't aluminum and nitrogen used as dopants in semiconductors, chips, etc.?

Boron is most commonly used for the p-type dopant, and phosphorus for the n-type, correct? Why not aluminum for the p-type and nitrogen for the n-type? Is it just a matter of cost and/or convenience?
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LAN8720 50Mhz clock: 33R termination/adaptation resistors

I'm trying to understand the function of these three 33R ohms resistors. The full schematic is here: Schematic I can understand the objective of R14 and R12: Split the clock and adapting it, but what ...
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How debug atmega2560 with pickit 4? (Arduino mega board)

I owned a brand new pickit 4, and I'm trying to get a debug session working. This is what I did: 1. Cut reset pin from the USB-UART programmer. There is a Reset EN pad that can be cutted off to ...
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TXS0108E8 Specification in Mbps, what is the equivalent in MHz?

I am looking at a datasheet of a level converter (https://www.ti.com/lit/ds/symlink/txs0108e.pdf?ts=1634046719564&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTXS0108E - TXS0108E8) and ...
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How do I restart the program again when the MCU crash occurs.[microchip ATSAMG55J19 ]

I am designing a custom PCB based on the ATSAMG55J19 microcontroller. I am using the SWD interface with Atmel ICE. My MCU crashes and stops running code sometimes. Even if I modified the code and ...
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HD44780 based 20x4 LCD delays in printing

I am using my HD44780 based 20x4 LCD with the famous I2C backpack, AKA the I2C I/O expander module, the PCF8547, the I2C I/O expander module is connected to the 20x4 LCD and is connected via the I2C ...
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Can't display characters on 16x2 LCD

Currently I'm working on a project where I want to display some data on an LCD. I'm using a MCP2221A to communicate with a PCF8574, which then sends the bits to the HD44780 LCD. How: I'm using the LCD ...
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Resetting Microchip MM7150 to reliable state

So, I recently acquired the MM7150 chip from Microchip for use in a project. It functions as a combined 9 axis motion sensor, combining a gyroscope, accelerometer and magnetometer. Specifically, I'm ...
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NVM Region not unlocking on SAML21 Flash memory

I am trying to write to a specific address on my SAMR34 which uses SAML21. However, I noticed that despite first erasing the row te address is located in, the data was not being written. So I checked ...
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How to implement SPI SCK with ESP8266

I have a ESP8266-01 and a Microchip 23LC1024 memory chip which communicates via SPI bus, and I want to drive it using the ESP8266-01. My thought is to implement the SPI protocol in software i.e. bit-...
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How much memory does the 23LC1024 have?

The Microchip 23LC1024 chip is said to have 1Mbit of memory. Looking at Wikipedia, it says that a Mbit is 10^6 bits. Is that so? I mean, is this decimal Mbit? It doesn't seem reasonable to me..
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What does High-Impedance mean in digital systems?

I'm currently messing with the Microchip 23LC1024 SPI RAM chip, and trying to read the datasheet to understand how to work with it. I'm not an electronics engineer or something like that, I'm a ...
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MPLAB-X new Assembler

I am trying to assemble a old project from old MPASM on this new MPLAB-X Assembler only to end up with many errors and I have searched for usage or help and this seems to be lacking. Anyone know what ...
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USB host driver for PL2303 with Microchip USB stack

My goal of the project is to establish communication between PIC24FJ32GU202(USB host) <--> PL2303SA(USB device). I have configured the PIC24 as USB host and with help from examples, MCU can ...
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PIC18 preserving EEPROM data during reprogramming

I am using PIC18f4550 microcontroller to store some data in EEPROM so that the data can be accessible after the power reset. When I reprogram the PIC with PICkit3, it seems to wipe out the EEPROM data ...
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2 votes
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Converting analog voltage to drive interrupt signal in PIC microcontroller

I have a circuit that will output between 1v-4v when the circuit detect an event. When there is no event, the output voltage stays at 5v. I want to use this as an interrupt input signal to my ...
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Debugging with ATMEL-ICE in Ubuntu using cutecom

I have an Atmel-ICE-C that I've been using successfully within Ubuntu 18 to program a custom board based on the attiny85 using the terminal and the necessary libraries. I can use a command like this ...
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Unable to install MCP2221 Driver on Win10 64bit OS

I use this PIC32MZEF board - https://www.microchip.com/DevelopmentTools/ProductDetails/dm320007. It needs MCP2221 driver tobe installed for UART communication with PC. I downloaded from official ...
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Strange behavior with a Microchip KSZ9031RNX after switching off and on

I use a Microchip KSZ9031RNX as Ethernet phy on a custom board. I have two boards of the same type. The KSZ9031RNX is connected to an TI Sitara AM5728 (ARM Cortex A15) microcontroller that runs ...
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Microchip device support - MPLAB Snap supported or unsupported devices list

Need to program and debug PIC and AVR MCU's so MPLAB Snap looks to be a very attractive option however: "it supports many of Microchip’s newer MCU offerings but not some legacy products" - ...
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How are Microchip configuration straps used?

I'm working with a Microchip USB hub IC (USB2533 to be specific) and can't nail down a straightforward answer on how their configuration straps work through my own research. On this device, many pins ...
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Microcontroller circuit. How many capacitors needed for Vdd?

I am developing a circuit for a dsPIC30fxxxx microcontroller. In the documents I found a picture that depicts the Vdd circuits, see attachment. What does the picture say? Do I need 3 capacitors for ...
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Replacing mic22705 buck converter with cheaper one

Since Microchip decided to increase their mic22705 price, my company decided to replace it with another synchronous buck converter. the current price we get for 20K units of mic22705 is 1.459$. The ...
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Microchip's pic-as throws syntax error on macro define

I have a file with a name like xxxx.asm in it I have: InitPORTA MACRO pic-as throws a syntax error on this line. The code ...
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How do I debug my PIC16F15323 code?

Microchip PIC16F15323 topic I have source code that compiles fine under Microchip's mpasmx Somewhere in there I may have a bug as unlikely as that may seem. I would like to debug my code. I have MPLAB ...
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PIC18F4550's internal oscillator block power consumption

I started learning the PIC18F4550 recently, and I came across the internal oscillator segment where an 8 MHz internal oscillator source is divided into multiple clock signals of different frequencies. ...
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PIC 18F4550 capture mode

I would like to measure a pulse using the PIC 18F4550 in capture mode. This pulse is generated by the PIC microcontroller itself. For this, I use a function which plays the role of the XOR logic gate (...
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How can I use a single port of PIC18F4550 as both input and output

I'm trying to use port B of PIC18F4550 as both inputs and outputs. What I need to do is to connect a 7-segment-display and also connect 4 push buttons to the same port, this means that I need to use ...
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